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With the explosion of wireless communications in number of users and data rates, the reduction of network power consumption becomes more and more critical. This is especially true for base stations which represent a dominant share of the total power in cellular networks. In order to study power reduction techniques, a convenient power model is required, providing estimates of the power consumption...
This paper analyses how much the capacity layer of HetNets are utilized as the function of momentary traffic demand and user distribution. It is shown that the capacity layer is inevitably underutilized and it is worth to apply power saving techniques to reduce the energy used by the capacity layer of the HetNet.
The authors conclude that instantaneous cell-load and buffer service-rate measurements can serve as input to various energy saving network algorithms. For example, such algorithms can control intelligent sleep modes in a mobile network, and can turn on and off radio resources according to the temporal and spatial variations of traffic. In particular, the authors demonstrate that underutilized 3-sector...
In order to quantify the energy savings in wireless networks, the power consumption of the entire system needs to be captured and an appropriate energy efficiency evaluation framework must be defined. In this paper, the necessary enhancements over existing performance evaluation frameworks are discussed, such that the energy efficiency of the entire network comprising component, node and network level...
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